INSERT INTO cscart_multi_declock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '81c4df3f5b212010300b97ff812c4b22e8c73a073ace6d89f20ca56ad5624ee7', 
    '7rO8rvaGl7L2TWYGxwssgCxj0A2QLsKuQFxEkkF2UPY=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00023

Result

int(1)